Combinations, php version

$result = array();
$combination = array();

function combinations(array $myArray, $choose) {
  global $result, $combination;

  $n = count($myArray);

  function inner ($start, $choose_, $arr, $n) {
    global $result, $combination;

    if ($choose_ == 0) array_push($result,$combination);
    else for ($i = $start; $i <= $n - $choose_; ++$i) {
           array_push($combination, $arr[$i]);
           inner($i + 1, $choose_ - 1, $arr, $n);
           array_pop($combination);
         }
  }
  inner(0, $choose, $myArray, $n);
  return $result;
}

$comb = combinations(array(1,2,3,4,5,6,7,8,9,10), 5);
   foreach ( $comb as $c) {
      foreach ( $c as $e ) echo "$e ";
     echo "<br />";
   }